1. Department of Surgery, Meander Medical Centre, Amersfoort, the Netherlands
2. Department of Surgery, Amsterdam University Medical Centres, location AMC, Amsterdam, the Netherlands
3. Department of Gastroenterology and Hepatology, Amsterdam University Medical Centres, location AMC, Amsterdam, the Netherlands
4. Department of Gastroenterology and Hepatology, Radboud Academic Medical Centre, Nijmegen, the Netherlands
5. Department of Gastroenterology and Hepatology, Deventer Hospital, Deventer, the Netherlands
6. Jeroen Bosch Hospital, Den Bosch
7. Medical Centre Zuiderzee, Lelystad
8. St Jansdal Hospital, Harderwijk
9. Gelre Hospital, Apeldoorn
10. Radboud University Medical Centre, Nijmegen
11. Maxima Medical Centre, Eindhoven
12. Rijnstate Hospital, Arnhem
13. Treant Hospital, Hoogeveen
14. Haga Hospital, the Hague
15. Antoni van Leeuwenhoek Hospital, Amsterdam
16. Rivierenland Hospital, Tiel
17. Canisius-Wilhelmina Hospital, Nijmegen
18. Onze Lieve Vrouwen Hospital, Amsterdam
19. Ter Gooi Hospital, Hilversum
20. Zuyderland Medical Centre, Sittard
21. Zaans Medical Centre, Zaandam
22. Maastrisch University Medical Centre, Maastricht
23. Wilhelmina Hospital, Assen
24. Leids University Medical Centre, Leiden
25. Erasmus University Medical Centre, Rotterdam
26. VU Medical Centre, Amsterdam
27. Van Weel Bethesda Hospital, Dirksland
28. St Anna Hospital, Geldrop
29. University Medical Centre Groningen, Groningen
30. Meander Medical Centre, Amersfoort
31. Amphia Hospital, Breda
32. Elkerliek Hospital, Helmond
33. Westfries Gasthuis, Hoorn
34. Reinier de Graaf Hospital, Delft
35. Rode Kruis Hospital, Beverwijk
36. Maas Hospital Pantein, Cuijk
37. Alrijne Hospital, Leiderdorp
38. Bernhoven Hospital, Uden
39. St Jans Gasthuis, Weert
40. St Jansdal, Harderwijk
41. Onze Lieve Vrouwen Gasthuis, Amsterdam
42. University Medical Centre Utrecht, Utrecht
43. Haaglanden Hospital, The Hague
44. Lange Land Hospital, Zoetermeer
45. Flevo Hospital, Almere
46. Isala Hospital, Zwolle
47. Ijsselland Hospital, Capelle aan den Ijssel
48. University Medical Centre Groningen
49. Martini Hospital, Groningen
50. Maasstad Hospital, Rotterdam
51. Laurentius Hospital, Roermond
52. Bravis Hospital, Bergen op Zoom
53. Medical Centre Alkmaar, Alkmaar
54. VieCurie Hospital, Venray
55. Antonius Hospital, Sneek
56. Fransiscus Hospital, Rotterdam
57. Medical Centre Leeuwarden, Leeuwarden
58. Queen Beatrix Hospital, Winterswijk
59. Zuyderland Medical Centre, Heerlen
60. Haaglanden Medical Centre, The Hague
61. Ikazia Hospital, Rotterdam
62. Medical Spectrum Twente, Twente
63. Bovenij Hospital, Amsterdam
64. Albert Schweizer Hospital, Dordrecht
65. St. Jans Gasthuis, Weert
66. Zorggroep Twente, Twente
67. Rivas Hospital, Gorinchem
68. Twee Steden Hospital, Tilburg
69. Ziekenhuisgroep Twente, Twente
70. Haven Hospital, Rotterdam
71. Zorgsaam Terneuzen Hospital, Terneuzen
72. Nij Smellinghe Hospital, Drachten
73. Slotervaart Hospital, Amstelveen
74. Spaarne Gasthuis Hospital, Hoofddorp
75. Catharina Hospital, Eindhoven
76. Twee Steden Ziekenhuis, Tilburg
77. Waterland Hospital, Purmerend
78. Ropcke Zweers Hospital, Hardenberg
79. Admiraal de Ruijter Hospital, Goes
80. Onze Lieven Vrouwen Gasthuis, Amsterdam
81. Maastrischt University Medical Centre, Maastricht
82. Gelderse Vallei Hospital, Ede
83. Diakonnessen Hospital, Utrecht
84. Groene Hart Hospital, Gouda
85. Ommelander Hospital, Groningen
86. Deventer Hospital, Deventer
87. Amstelland Hospital, Amstelveen
88. Ijsselland Hospital, Capelle aan de Ijssel
89. Diaconessen Hospital, Meppel
90. Admiraal de Ruyter Hospital, Goes
91. Antonius Hospital, Nieuwegein
92. Slingeland Hospital, Doetinchem
93. Amsterdam Medical Centre, Amsterdam
94. Tjongerschans Hospital, Heerenveen